[neil]

With the season approaching, I have been doing some preparation. Is it correct to think of using the pivot to carry a bent right arm to impact? If so, when does the right arm "blast off" the chest and how does one avoid over acceleration when using that violent sounding swing thought?

I would think more of carrying the right forearm flying wedge into impact -the right arm cannot be straight at impact if you have set up correctly.
The right arm does not "blast off"-unless you are a leftie.
The left arm is thrown off the chest by the pivot.
The right arm is trying to straighten and the right wrist is trying to stay bent.
Overacceleration-make sure you are PULLING all the way down -if you lose pressure in pp#3 you are overaccelerating.
This is from a swingers perspective